- _in_trading_window(): helper nou — suprima heartbeat in afara ferestrei de tranzactionare
- _heartbeat_loop: format compact romanian (STATE | semnale: N | Xh), fara statistici backend
- ATM pornit: "canary:" -> "senzor: ok/deviat (dist/thresh)"
- ATM oprit: simplificat la "durata: Xh | semnale: N"
- /status: 2-3 linii compacte, etichete pauza in romana, fara "Canary"
- _maybe_log_transition: parametru status_body optional; titluri "Piata deschisa/inchisa"
- _brief_status(): helper nou pentru mesajele de tranzitie piata
- 10 teste noi (trading_window, status compact, fereastra); 194 passed
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>